36results about How to "The implementation effect is good" patented technology

The invention discloses a buoyancy pipe penetrating construction method, which is characterized in that a water source is used as a medium between an outer sleeve and an inner penetrating pipe, so that the smoothness of the construction process is ensured, and an inlet hole water stopping device and an outlet hole water stopping device are respectively arranged at two ends of the outer sleeve and are used as a sealing system of the water source. In addition, a limiting device, a limiting roller and an anti-collision roller are installed at the position of the inlet hole, the inner wall of the outer sleeve and the end of the inner penetrating pipe respectively. And finally, the inner penetrating pipe is smoothly pushed into the outer sleeve under the action of buoyancy. The problems that in a traditional roller launching method, a method for installing trundles on the outer wall of a pipeline and a pulley block propelling method, the roller structural strength is insufficient, durability is poor, and an outer anticorrosive coating of the pipeline is prone to being damaged are effectively solved, and the method is particularly suitable for large-diameter and long-distance inner penetrating pipe construction with the high requirement for finished product protection; and the method has good economical efficiency and implementation effect.

The invention relates to the technical field of information analysis, in particular to an information analysis method and system based on student data traceability. The method comprises the following steps: acquiring a student subject learning quality data set; performing data preprocessing on the student subject learning quality data set to generate a subject learning quality preprocessing data set; performing influence factor screening on the subject learning quality preprocessing data set according to a preset regression analysis model to generate subject influence related factors; utilizing a Fahrenheit combination interval analysis method to carry out deep interval analysis on the subject influence correlation factors, and generating a student subject learning quality strategy; therefore, through influence factor analysis and strategy adjustment of the system, the problem that a traditional education analysis method is lack of individuation and dynamic adjustment is solved, and the scientificity and the implementation effect of education decision making are improved.

The invention discloses an energy efficiency optimization system for training and optimizing according to actual data, and relates to the technical field of energy efficiency optimization. Comprising an energy consumption prediction model, a temperature optimization module, an adaptive control module, a data collection module, a model training module, a variable optimization module, a prediction maintenance module, a collaborative optimization module, a user operation module and an algorithm updating module. According to the energy efficiency optimization system for training and optimizing according to the actual data, the prediction model of the system is trained and optimized by using the actual data, and when the actual energy use condition changes, adjustment can be made in time to achieve the purpose of dynamic adjustment, so that the limitation of a fixed model and an algorithm is avoided, and the applicability of the system is improved; the method is particularly suitable for kitchen application scenes, and meanwhile, more input variables are continuously introduced in combination with actual situations to further improve the accuracy and reliability of the prediction model, so that the implementation effect of energy-saving measures is improved.

The application relates to a reinforcing device for the bottom of a beam with a special-shaped section and a reinforcing method, the device comprises a supporting assembly and a frame assembly; the supporting assembly comprises an upwardly-inclined supporting rod, the top end of the supporting rod is connected to the lower surface of the frame assembly; the frame assembly comprises a stress plate and a plurality of U-shaped plates connected above the stress plate, the stress plate is arranged along the length direction of the beam, and the lower surface of the stress plate is fixedly connected with the top end of the supporting rod. The method can quickly reinforce the bottom of the beam, the supporting plate and the stress plate are only needed to be fixed, then the position of each U-shaped plate is adjusted by using a jackscrew, the bottom of the beam can be supported, the steps are compact, the implementation effect is good, the amount of used molds is reduced, and the construction cost is lowered.

The invention discloses a method for improving the fracturing crossing effect and the far-well end seam height, which comprises the following steps: determining a crossing position index according to a horizontal well track index, a reservoir minimum horizontal ground stress size index, a reservoir fracture toughness value index and a reservoir filtration coefficient index, selecting a crossing fracturing position, and segmenting to obtain a segmentation result; perforation, radial well guide reaming, fracturing and crossing of a reservoir where a horizontal well hole track is located and fracturing of a penetrated reservoir are carried out on the first crossing fracturing section; a multi-particle-size temporary plugging agent is added, the temporary plugging agent is pumped with medium-high displacement and high-viscosity fracturing fluid, normal-viscosity fracturing fluid is continuously injected in a high-displacement and step mode, and a propping agent is added in a step mode till a preset fracture height is reached; and a packing bridge plug is pumped to the position of the previous cross-layer fracturing section for the remaining cross-layer fracturing sections, setting is conducted, and cross-layer fracturing and pumping operation is repeated till cross-layer fracturing of all the sections is completed. The fracturing volume scale and the far-end crack height of the thin interbed horizontal well can be greatly improved.

The invention discloses a radar error calibration method based on target track comparison, relates to the technical field of electronic information, and aims to improve the precision and coverage dimension of radar system error detection and adapt to differential detection requirements and coordinate conversion characteristics of different flight conditions so as to realize efficient and accurate error evaluation and analysis and improve the accuracy of radar system error detection. By improving the analysis precision and the anomaly recognition speed of radar system error monitoring, the quality assurance efficiency and the detection accuracy level in the operation process of a radar system are remarkably improved, pairing deviation and error evaluation quality reduction caused by subjective judgment are avoided, the pertinence and the implementation effect of an optimal matching scheme are effectively improved, and the method is suitable for popularization and application. Through accurate identification and analysis of a slant distance error, an azimuth error and an elevation angle error, and in combination with a preset number of times of radar data correction circulation mechanism, deviation abnormal factors influencing a radar system error are determined, and it is ensured that a quality management and control measure is highly matched with an actual detection defect risk.

The utility model discloses a shell mounting structure of a food processor, which comprises a main machine shell provided with a main machine inner concave cavity, and is characterized by further comprising a rear cover, a rear cover inner concave cavity is arranged on the rear cover corresponding to the main machine inner concave cavity, an inserting part and a clamping part are arranged in the main machine inner concave cavity, and the main machine inner concave cavity is provided with a clamping groove. The clamping part is located below the inserting part, the inserting part is communicated with the clamping part, a clamping block is arranged on the rear cover, the clamping block is inserted into the inserting part, the rear cover and the clamping block can move downwards, so that a part of the clamping block extends into the clamping part, and a mounting space where components can be mounted is defined between the host inner concave cavity and the rear cover inner concave cavity; according to the shell mounting structure of the food processor, the rear cover is matched with the inserting part and the clamping part on the main machine shell through the clamping block, so that the rear cover is fixedly mounted on the main machine shell, and therefore, components in the mounting space can be maintained or replaced only by dismounting the rear cover without dismounting the main machine shell, and the mounting efficiency is improved. The method is simple, convenient and time-saving to implement.

The invention discloses an inner bore flaw judgment method based on bore port shock wave signal characteristics, and belongs to the technical field of signal processing. According to the bore flaw judgment method based on the shock wave signal characteristics of the bore opening, the state of the bore of the artillery is judged in real time, so that basic combat troops can quickly and accurately judge whether flaws exist in the bore or not after using the artillery every time, and therefore the safety risk and the equipment damage possibility are reduced. The method comprises the steps that firstly, collected shock wave signals are preprocessed, then the preprocessed signals are decomposed into different modal components, and finally, a deep multi-scale residual network is adopted for judging bore flaws. The detection method is simple, convenient, rapid and non-invasive, does not need complex detection equipment and detailed inner bore detection, and is suitable for artillery of various models and calibers, so that the feasibility and implementation of inner bore detection are improved, the reliability of the artillery is improved, and the personnel safety is guaranteed.

The present invention discloses a ring frame support enclosure system that can also serve as a retaining wall, including a retaining structure arranged around a foundation pit to bear the lateral load of the foundation pit, and a concrete support structure arranged inside the retaining structure to balance the lateral load on the retaining structure; the concrete support structure includes ring frame beams arranged on both sides of the retaining structure, and a concrete waist beam for connecting the ring frame beams, the concrete waist beam is arranged close to the retaining structure; and a support member is arranged inside the concrete support structure. The present invention also discloses a construction method of a ring frame support enclosure system that can also serve as a retaining wall. The present invention not only has high engineering applicability, high structural reliability and safety, but also has fewer construction steps and good economy.

The utility model discloses an electric ceramic cooker which comprises an electric ceramic cooker body, a heating element and a controller for controlling the heating element, the heating element is arranged in an inner cavity of the electric ceramic cooker body, and the electric ceramic cooker is characterized in that the electric ceramic cooker body is further provided with a placement groove, and the controller is arranged on the placement groove in a movable mode. An elastic piece and a convex section which are matched with each other are arranged between the controller and the placement groove; according to the electric ceramic cooker, the controller can be arranged on the placement groove of the electric ceramic cooker body, so that the overall size of the electric ceramic cooker product is small, the overall packaging and transportation cost of the product is reduced, and application and popularization of the product are facilitated; moreover, when the controller moves on the placement groove, elastic collision occurs between the elastic piece and the protruding section, sound feedback is generated during collision, a user can judge whether the controller moves in place or not according to sound, and operation is easy and convenient.

This invention belongs to the field of drilling exploration and development, specifically relating to a method for calculating the remaining oil saturation of high water-cut reservoirs based on seepage patterns. It aims to solve the problem that existing methods for calculating remaining oil saturation require calculating well-to-well distances, making it difficult to quickly and efficiently quantitatively describe the remaining oil saturation at different locations. The method includes: collecting engineering parameters of the reservoir for which remaining oil saturation calculations are to be performed; constructing a quantitative mathematical model of seepage channels; calculating the seepage velocity based on the quantitative mathematical model; calculating the water cut based on the seepage velocity to obtain the water saturation; and then obtaining the oil saturation based on the water saturation. This invention eliminates the need to calculate well spacing and can quickly and efficiently calculate the remaining oil saturation at a specific moment for a grid node based on known parameters. This allows oilfield technicians to quickly, easily, and quantitatively grasp a relatively accurate distribution of remaining oil in sand bodies within a short time.

The invention, which relates to the technical field of human resource training, discloses a service system and method for external-assistance human resource training. External-assistance personnel of each training course are screened out according to each training course required by each target region; the environment safety of each target region and the necessity and cost of offline training of each training course in each target region are evaluated, the training mode of each target region is analyzed, and external assistance personnel with targeted professional ability and experience are selected for different rescued regions; the professional performance and the implementation effect of an external assistance human resource training project are improved, the training effect and the working efficiency are ensured, the professional image of external assistance work can be shaped, cooperation with a rescued area is promoted, meanwhile, the safety and the cost of training are predicted, then the training mode of each target area is selected, and the training efficiency is improved. The safety of the outside-assistance personnel is effectively guaranteed, the cost of the outside-assistance human resource training project is controlled, and smooth implementation of the outside-assistance human resource training project is guaranteed.

The invention relates to the technical field of diamond chain rope machine cutting, and proposes an underwater concrete cofferdam cutting method. The method adopts a special underwater concrete cofferdam cutting device, and comprises the following steps: 1. installing the underwater concrete cofferdam cutting device on an object to be cut; 2. forming a closed loop through the diamond chain rope through the cutting device and making the diamond chain rope segment cross the vertical transverse cutting line of the object to be cut; 3. performing a first vertical transverse cutting on the object to be cut; 4. moving the cutting device backward, making the diamond chain rope segment cross the horizontal transverse cutting line of the object to be cut; 5. performing a second horizontal transverse cutting on the bottom of the object to be cut; 6. installing a segmented vertical transverse cutting device on the object to be cut; 7. performing segmented vertical transverse cutting on the object to be cut, and lifting the cut object; the invention solves the technical problem of fixing and winding a diamond chain on a concrete cofferdam to be cut, and has the advantages of simple equipment, convenient operation, good implementation effect, and the like.

The utility model discloses an instrument for taking out foreign matters in a nasal cavity, which relates to the technical field of medical instruments and comprises a holding rod, one end of the holding rod is fixedly connected with a fixing wire, the top end of the fixing wire is fixedly connected with an annular wire, one side of the fixing wire is provided with a sliding wire, and two ends of the annular wire are fixedly connected onto the fixing wire and the sliding wire respectively. Four clamping rods are fixedly connected to the inner side wall of the annular wire, the included angle of extension lines of the four clamping rods is 90 degrees, a sliding groove is formed in the side wall of the holding rod, an inserting groove is formed in one end of the holding rod, a sliding block is slidably connected into the sliding groove, the sliding wire is slidably connected into the inserting groove, and the sliding wire penetrates through the inserting groove and extends into the sliding groove. The end, extending into the sliding groove, of the sliding wire is fixedly connected to the sliding block, the fixing wire and the inserting groove are located at the same end of the holding rod, and the technical problem that when foreign matter is cleaned, tiny objects in the nasal cavity cannot be better taken out through the annular wire is solved.

The application relates to the technical field of electric massage, and discloses an acupoint positioning electric stimulation massage method and system based on a flexible electrode array, which comprises the following steps: pasting the flexible electrode array on a skin stimulation area, injecting a composite electric detection signal of superimposed low-frequency sine waves and high-frequency pulse sequences into the subcutaneous tissue through the electrode, collecting and extracting low-frequency impedance spectrum and high-frequency transient response waveform, determining the subcutaneous extracellular fluid resistance and fitting the capacitance charging and discharging time, combining into an acupoint electrophysiological characteristic vector, positioning the active acupoint to be stimulated through spatial clustering analysis, and then applying a biphasic asymmetric electric stimulation pulse according to the electric characteristics of the tissue, capturing an induced composite response signal in real time, fitting the density to obtain an action potential emission density trend, reducing the pulse repetition frequency and pulse width when the trend reaches a decay inflection point, and restoring the trend to a resting state level until the trend is restored to a resting state level; and the application can improve the effectiveness of electric stimulation massage.

The invention belongs to the field of machining, and particularly relates to a battery car label base plate machining grinding machine which comprises a machine body, a grinding wheel, a first driving mechanism, an X-axis walking mechanism, a Y-axis walking mechanism, a Z-axis walking mechanism and a sliding table, the sliding table comprises a bearing plate and a bearing table, and at least four composite vibration drivers are installed on the edge area of the lower portion of the bearing plate; when the grinding wheel grinds the battery car label base plate fixed to the bearing table, the composite vibration driver applies multi-frequency-band mechanical vibration to the bearing plate. According to the electromobile label base plate machining device, the electromobile label base plate can be automatically subjected to grinding, chamfering, grinding, polishing, grinding, coarsening and other operations in the machining process, the composite vibration driver is additionally arranged on the lower edge area of the bearing plate, the grinding efficiency, the chip removal effect, the grinding mark removal effect, the coarsening effect, the polishing effect and the like can be remarkably improved, and the implementation effect is good.

This utility model discloses an instant heater, including a shell, an instant heating element, a circuit board, a thermostat, and a water pump. The circuit board is provided with a power input terminal, a first branch, a second branch, and a power output terminal. The first branch is connected to a drive switch, a thermostat, and the instant heating element in sequence. The second branch is connected to a step-down rectifier module, a control module, and a water pump in sequence. One end of the thermostat is close to the instant heating element. The first branch after the drive switch is also provided with a first welding port and a second welding port of the thermostat, a first welding port of the heating element, and a second connection terminal of the heating element. The control module is provided with a water pump control terminal and a drive switch signal control terminal. The water pump control terminal and the power output terminal are also provided with a first welding port and a second welding port of the water pump. This instant heater has a simple and stable electrical connection between the circuit board, the thermostat, the water pump, and the heating element, and the components are compactly arranged.

The utility model discloses a cup disinfector which comprises a disinfection seat, a heating cavity is arranged on the disinfection seat, a heating body is arranged at the bottom of the heating cavity, and the cup disinfector is characterized by further comprising a placement cover, the placement cover covers an opening in the upper part of the heating cavity, a first cup holder is arranged on the placement cover, the first cup holder is in a shape with a narrow upper part and a wide lower part, a steam through hole communicated with the heating cavity is formed in the first cup holder; according to the cup sterilizer, the placing cover with the first cup holder is arranged on the heating cavity, when the cup sterilizer is used, a user can place a cup on the first cup holder through tools such as tweezers, steam generated in the heating cavity can sterilize the interior of the cup through the steam through holes, and after sterilization is completed, the user only needs to take down the cup from the first cup holder through the tweezers; the steam disinfection device is convenient to operate, the penetrating power of steam disinfection is high, the disinfection effect is good, and meanwhile the steam disinfection mode can also avoid excessive waste of water resources.

This utility model discloses an improved tea strainer structure, including a tea brewing cup and a steam pipe. The steam pipe contains a steam chamber with a bottom opening forming a steam inlet and a steam outlet on its top sidewall. The improved structure also includes a tea steaming mesh fixed to the outer periphery of the steam pipe. The bottom of the tea brewing cup has a trumpet-shaped protrusion with an annular support edge and a limiting tube at its upper opening. The bottom surface of the steam pipe and the top surface of the annular support edge are both horizontal. The bottom surface of the steam pipe rests on the top surface of the annular support edge, and the limiting tube extends upward into the steam chamber. The top wall of the limiting tube has a steam passage. The top surface of the tea steaming mesh and the inner sidewall of the tea brewing cup form a tea steaming chamber, with the steam outlet located within the chamber. This improved tea strainer structure features a simple structure for the tea steaming mesh and steam pipe, making it easy to manufacture. Furthermore, the bottom surface of the steam pipe fits snugly and stably against the bottom of the tea brewing cup, preventing steam leakage and ensuring efficient tea steaming.

The utility model discloses a steel ladder surface tiling structure which comprises a steel ladder, reinforcing ribs, a galvanized steel wire mesh, positioning ribs, connecting ribs and anti-skid bricks, the positioning ribs and the connecting ribs are fixedly arranged on the stepping plane of the steel ladder, the positioning ribs are arranged close to the internal corner and the external corner of the steel ladder, and the connecting ribs are arranged between the front positioning rib and the rear positioning rib; the galvanized steel wire meshes are laid on the stepping plane and the stepping vertical face of the steel stair and connected with the positioning ribs and the connecting ribs, the reinforcing ribs are installed on the portions, on the outer sides of the galvanized steel wire meshes, of the stepping vertical face and connected with the galvanized steel wire meshes, the cement mortar base layers are poured on the stepping plane and the stepping vertical face, and the anti-skid bricks are pasted on the cement mortar base layers. The positioning ribs, the connecting ribs, the reinforcing ribs and the galvanized steel wire gauze are installed in the cement mortar base layer, hardening shrinkage of cement mortar can be reduced, integrity and strength of the base layer are achieved, the hard and flat base layer is provided for tiling, the construction method is simple, and the integrity of the base layer is good.

The utility model discloses a kind of pet vest belt improved structure, including first webbing part and second webbing part, first webbing part and second webbing part between being provided with connecting buckle assembly, further including connecting piece, connecting piece inside is provided with accommodating space, connecting piece is provided with first connecting port, second connecting port, first movable port and second movable port, first movable port and second movable port are all communicated with accommodating space;First webbing part is fixedly connected with first connecting port, second webbing part sequentially passes through first movable port, accommodating space, second movable port and is fixedly connected with second connecting port, first webbing part, second webbing part and the connecting piece outside between first connecting port and first movable port are enclosed to form front wearing space, and second webbing part and the connecting piece outside between second movable port and second connecting port are enclosed to form rear wearing space;This pet vest belt can realize synchronous adjustment front wearing space and rear wearing space, and the structure of product whole is simple.

The present invention relates to a radio frequency coaxial connector fixing device, comprising a fixing plug and a columnar fixing socket, wherein the fixing plug comprises an insulating tube body sleeved on the outside of the radio frequency coaxial connector, a plurality of springs are arranged on the outside of the middle section of the insulating tube body, and the angle between the length direction of the springs and the length direction of the insulating tube body is α, which is an acute angle; a plurality of convex plates are arranged on the rear section of the insulating tube body, and a convex block is arranged on the outer side of the rear end of the convex plate; a hole for installing the radio frequency coaxial connector is arranged at the head end of the fixing socket, and the hole comprises a first mounting hole for the convex block to enter and exit, a second mounting hole for the convex plate to enter and exit, and a third mounting hole adapted to the springs, and a fourth mounting hole is arranged at the rear end of the fixing socket. The radio frequency coaxial connector fixing device has a simple structure and is easy to use. After the fixing plug and the fixing socket are plugged in, the fixing plug and the fixing socket are in a locked state, and the fixing plug and the fixing socket are not easy to separate, and the plugging quality is high.

The invention discloses a trash remover intelligent control system and method based on load self-adaptive adjustment, relates to the technical field of load adjustment, and aims to improve the precision and coverage dimension of trash remover grid bucket load monitoring so as to realize efficient and accurate jamming risk assessment, improve the analysis precision and early warning response speed of grid bucket unbalance loading state monitoring and improve the safety of trash remover grid bucket unbalance loading state monitoring. The operation reliability and the service life of equipment in the trash removal operation process are remarkably improved, the omission influence of fixed threshold judgment on the local jamming risk is effectively prevented, evaluation deviation and fault missing detection caused by experience judgment are avoided, intelligent configuration and differential input of trash remover control resources are achieved, and the work efficiency is improved. The pertinence and the implementation effect of the relief operation are effectively improved, the key rake tooth unit threatening the service life of the grid bucket is determined by combining unbalance risk evolution curve fitting and abrasion degradation rate calculation, and it is ensured that the maintenance measure is highly matched with the actual equipment degradation risk.

The present application relates to a kind of preparation method of metallocene polyethylene of wide molecular weight distribution, belong to olefin polymerization catalysis technical field.The preparation method of metallocene polyethylene of wide molecular weight distribution provided by the present application includes the following steps: (1) mixed metallocene catalyst, organic aluminum compound and mixed solvent, heating, and into ethylene is carried out polymerization reaction;The mixed solvent includes organic solvent A and organic solvent B, the organic solvent A is inert alkane or aromatic hydrocarbon, and the organic solvent B is the organic solvent containing polar functional group;(2) after reaction, quenching agent is added to terminate the reaction, washing, filtration, drying, it is finished.The present application uses mixed solvent system, and the use amount and the ratio of two components of mixed solvent are adjusted to realize the adjustment of metallocene polyethylene molecular weight distribution, greatly reduce the requirement of complex bifunctional catalyst, catalyst cost is low, polymerization process is simple, product performance is flexible, and application prospect is wide.

This invention discloses a method and system for detecting the cleanliness of photovoltaic panels, relating to the field of photovoltaic panel detection technology. The method includes first collecting benchmark data of a standard clean photovoltaic panel, dividing the effective light-receiving surface of the panel under test into several independent detection zones, calculating the cleanliness of each zone, extracting the spatial distribution characteristics of cleanliness, calculating the uniformity of light absorption in combination with local light absorption intensity, and obtaining an initial judgment result of overall cleanliness through correlation determination; then, based on the cleanliness threshold of each zone and the natural contamination pattern of the array, selecting contamination characteristic areas and clean benchmark areas to obtain on-site verification data, calibrating the initial judgment result, and obtaining the final detection result. The system includes modules corresponding to the steps of the method. This method can provide specific information on the contamination distribution in each area for the clean operation and maintenance of photovoltaic panels, improve the pertinence and actual implementation effect of photovoltaic panel clean operation and maintenance work, and provide effective data support for the daily operation and maintenance of photovoltaic power plants.

The invention discloses a multifunctional coffee funnel which comprises a funnel upper shell and is characterized in that the multifunctional coffee funnel further comprises a funnel base and a capsule mounting module, the funnel base is provided with a containing cavity and a liquid outlet communicated with the containing cavity, the capsule mounting module comprises a plurality of capsule adapting bases matched with different coffee capsules, the capsule adapting bases are arranged on the containing cavity, and the liquid outlet is communicated with the containing cavity. The funnel base is detachably connected to the lower portion of the funnel upper shell, and the funnel upper shell is further provided with an elastic puncturing piece used for puncturing the coffee capsule and achieving fluid guiding. According to the multifunctional coffee funnel, by additionally arranging the capsule mounting module comprising different capsule adapting seats, when different coffee capsules need to be adapted, only the funnel base needs to be detached, then the capsule adapting seats are replaced, and then the capsule adapting seats are remounted, that is, different funnel upper shells and funnel bases do not need to be replaced, so that the overall manufacturing cost of the product is reduced, and the universality is wide; and the size of the capsule adapter seat is relatively small, so that the overall packaging and transportation cost of the product can be reduced.

The present invention relates to a tunnel boring machine control method based on BIM deep planning, which includes establishing a three-dimensional tunnel model according to geological data; collecting working conditions and mechanical parameters through actual operation; determining the contour of the working face through a laser locator, and generating measurement control elements in combination with the three-dimensional tunnel model; forming a BIM virtual tunnel face scene based on tunnel structure information, working conditions, mechanical parameters and measurement control elements; simulating the entire mechanical excavation operation construction process of a cycle section of the tunnel by using BIM technology, and judging the feasibility of intelligent instruction parameters and decision-making; conducting on-site control excavation construction tests, and judging the feasibility of intelligent control parameters and intelligent decision-making instructions again in dynamic on-site operations, adjusting parameters and improving the accuracy of simulation operations; simulating the mechanical excavation operation construction of the next cycle section of the tunnel by using BIM technology according to the optimized control instructions; and optimizing during implementation until the entire tunnel construction process is completed.

The invention discloses a dynamic power adjusting method for a cleaning electric appliance aiming at complex ground working conditions, relates to the technical field of power adjusting, improves the sensing precision and power adjusting capability of the cleaning electric appliance for the complex ground working conditions, and can adapt to differential cleaning requirements and dynamic resistance change characteristics of different ground materials. Therefore, efficient and accurate power output control is realized, the influence of a fixed power mode on insufficient power supply of a high-resistance area is effectively prevented, power configuration deviation and cleaning effect reduction caused by experience judgment are avoided, the pertinence and implementation effect of an optimal power regulation scheme can be effectively improved, and the power regulation efficiency is improved. According to the method, key resistance factors influencing cleaning work are determined, it is ensured that power management and control measures are highly matched with actual cleaning working condition requirements, unified planning is carried out before cleaning work, and the problem of insufficient calculation power caused by real-time analysis in the cleaning process of the cleaning electric appliance is solved.

The utility model relates to a multi-size detachable combined graphite mold suitable for plasma sintering, belongs to the field of design and manufacture of plasma sintering graphite molds, and aims to solve the problem that the combination of molds can be adjusted according to the size of a required sample so as to meet the required size requirement, and has the technical key points that a middle mold sleeve comprises a plurality of middle mold sleeves with different diameters; the middle die sleeves are cylindrical, the upper surfaces of the protrusions of the lower base support the bottoms of the middle die sleeves, the middle die sleeves of different diameters are coaxially nested and arranged on the upper surface of the base, and the pressing heads of different diameters can be matched with the middle die sleeves of different diameters. The outer die sleeve is cylindrical, the outer die sleeve is coaxially nested and arrayed outside the bulge and the middle die sleeve supported on the upper surface of the bulge, and the upper surface of the lower base supports the bottom of a cylinder of the outer die sleeve, so that the graphite die is detachable, each component can be independently replaced, and the combination of the die can be adjusted at any time according to the size of a sample; and further, the required size requirement is met.